<template>
   <div class="login_container">
      <div class="login_box">
         <div class="avatar_box">
            <img src="../assets/iu5.jpg" alt="">
         </div>
         <div>
            <el-form
              ref="loginFormRef"
              :model="loginForm"
              :rules="loginFormRules"
              label-width="60px"
              class="login_form"
            >
              <el-form-item label="账号" prop="username">
                <el-input 
                v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
              </el-form-item>
              <el-form-item label="密码" prop="password">
                <el-input
                  v-model="loginForm.password"
                  type="password"
                  prefix-icon="iconfont icon-3702mima"
                ></el-input>
              </el-form-item>
              <el-form-item class="btns">
                <el-button type="primary" @click="login">登录</el-button>
                <el-button type="info" @click="resetLoginForm">重置</el-button>
              </el-form-item>
            </el-form>
         </div>
      </div>

   </div>
</template>
<script>
export default {
    name: '',
    data() {
       return {
          loginForm: {
            username: 'admin',
            password: '123456'
          },
          // 表单验证
          loginFormRules: {
            username: [
                { required: true, message: '请输入用户名', trigger: 'blur' },
                { min: 2, max: 10, message: '长度在 2 到 10 个字符', trigger: 'blur' }
              ],
            password: [
              { required: true, message: '请输入用户密码', trigger: 'blur' },
              { min: 6, max: 18, message: '长度在 6 到 18 个字符', trigger: 'blur' }
            ]
          }
       }
    },
    computed: {},
    methods: {
      login() {
        this.$refs.loginFormRef.validate( async valid => {
          if(!valid) return;
          //await 只能用在呗async修饰的方法中 所以写在距离await最近的一个方法中
          const res = await this.$http.post('login', this.loginForm)
          if(res.meta.status !==200) return this.$message.error('登录失败，账号或密码错误！');
          this.$message.success('登录成功！');
          window.sessionStorage.setItem('token', res.data.token)
          this.$router.push('/home')
        })
        
      },
      resetLoginForm() {
        this.$refs.loginFormRef.resetFields()
      }
    },
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 360px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  background-color: #fff;

  .avatar_box {
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 60px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: center;
}
.info {
  font-size: 13px;
  margin: 10px 15px;
}
</style>